Journal ArticleDOI
Nanostructured Functional Block Copolymers for Electrooptic Devices
Yanqing Tian,Ching Yi Chen,Marnie Haller,Neil M. Tucker,Jae-Won Ka,Jingdong Luo,Su Huang,Alex K.-Y. Jen +7 more
TLDR
In this paper, three dendron−linear diblock copolymers with a polyene-type nonlinear optical (NLO) chromophore incorporated in the DBS and polystyrene as the linear block were synthesized to investigate the effect of nanostructures on electrooptic properties.Abstract:
Three dendron−linear diblock copolymers with a polyene-type nonlinear optical (NLO) chromophore incorporated in the dendron segment and polystyrene as the linear block were synthesized to investigate the effect of nanostructures on electrooptic (EO) properties. These block copolymers form nanostructures with a periodicity between 36 and 44 nm, which can be characterized using atomic force microscopy (AFM). High EO coefficients (r33) up to 64 pm/V can be achieved in these materials that only have relatively low chromophore concentrations (the highest one is 18 wt %). The resulting poled copolymers also showed good temporal stability. More than 81% of the original r33 value can be retained after being isothermally heated at 85 °C for more than 500 h. On the contrary, the results from the guest−host systems (the chromophore was dispersed into polystyrene) only exhibited lower r33 values and very poor thermal stability (less than 30% of the original r33 values remained after 120 h at 85 °C). These results cle...read more
Citations
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Journal ArticleDOI
Toward integrated plasmonic circuits
TL;DR: In this paper, the current status, challenges, and future directions of the various components required to realize plasmonic integrated circuitry are described, as well as the current state, challenges and future direction of such components.
Journal ArticleDOI
Progress in the enhancement of electro-optic coefficients and orientation stability for organic second-order nonlinear optical materials
TL;DR: A review of the development of organic second-order nonlinear optical materials can be found in this article, where a brief introduction of organic NLO materials, the requirements of NLO material for applications in devices, optimization of the first-order hyperpolarizability of the NLO chromophores, and optimization of chromophore loading parameters are discussed.
Journal ArticleDOI
Responsive linear-dendritic block copolymers.
TL;DR: The combination of dendritic and linear polymeric structures in the same macromolecule opens up new possibilities for the design of block copolymers and for applications of functional polymers that have self-assembly properties.
Journal ArticleDOI
Digital Memory Versatility of Fully π-Conjugated Donor–Acceptor Hybrid Polymers
Yong Gi Ko,Dong Min Kim,Kyung-Tae Kim,Sungmin Jung,Dongwoo Wi,Tsuyoshi Michinobu,Moonhor Ree +6 more
TL;DR: Overall, this study demonstrated that the incorporation of π-conjugated cyano moieties, which control both the π -conjugation length and electron-accepting power, is a sound approach for the design and synthesis of high-performance digital memory polymers.
Journal ArticleDOI
Living Anionic Polymerization of Styrene Derivatives para-Substituted with π-Conjugated Oligo(fluorene) Moieties
TL;DR: In this paper, the anionic polymerization of styrene monomers para-substituted with π-conjugated mono-, di-, and tri(9,9-dihexylfluorene) moieties was examined under the conditions either in THF at −78 °C or in tert-butylbenzene at 20 °C with sec-BuLi as an initiator.
References
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Journal ArticleDOI
Controlled/"living" radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes
Journal ArticleDOI
About Supramolecular Assemblies of π-Conjugated Systems
Journal ArticleDOI
Design and synthesis of chromophores and polymers for electro-optic and photorefractive applications
TL;DR: The ability of nonlinear optical materials to transmit, process and store information forms the basis of emerging optoelectronic and photonic technologies as discussed by the authors, where organic chromophore-containing polymers, in which the refractive index can be controlled by light or an electric field, are expected to play an important role.
Journal ArticleDOI
Low (Sub-1-Volt) Halfwave Voltage Polymeric Electro-optic Modulators Achieved by Controlling Chromophore Shape
Yongqiang Shi,Cheng Zhang,Hua Zhang,James H. Bechtel,Larry R. Dalton,Larry R. Dalton,Bruce H. Robinson,William H. Steier +7 more
TL;DR: This study, together with recent demonstrations of exceptional bandwidths and ease of integration, demonstrates the potential of polymeric materials for next generation telecommunications, information processing, and radio frequency distribution.
Journal ArticleDOI
Simple reflection technique for measuring the electro‐optic coefficient of poled polymers
C. C. Teng,H. T. Man +1 more
TL;DR: In this article, a simple reflection technique for measuring the electrooptic coefficient of nonlinear optical polymeric films is described, based on the polarization rotation of a laser beam due to the electro-optic effect.
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